2 occurrences across the corpus

Sefer haYashar (Book of Jasher)

The Book of Jasher 19:2

And Eliezer Abraham's servant applied to them different names, and he converted Serak to Shakra, Sharkad to Shakrura, Zebnac to Kezobim, and Menon to Matzlodin.

The Book of Jasher 19:19

And the man laid hold of Eliezer and brought him to Shakra the judge of Sodom for judgment.